Staging Space Configuration

General

vPlus node needs staging space available in /vprotect_databy default. It is common to use PowerProtect DD for both the staging and backup destination. This will result in instant "store" processing, without the need to copy data from the staging space to the backup destinations. It is common to just attach an empty drive and mount it.

When using separate storage (usually local disks) for the staging space, consider its requirements. Staging space size depends on the number and size of simultaneous backups - as a rule of thumb, make it approximately equal to the number of expected simultaneous backup threads multiplied by the size of your biggest VM.

In any case - make sure the staging space is always mounted in the /vprotect_data folder, and that the vprotect user is able to have full permissions to this file system.

Example - Local filesystem

You also can use a plain file system for staging space (and optionally for backup destination). Here are steps assuming you have a local (physical or virtual) disk.

• List all existing disks, and find your dedicated disk (let's say - /dev/sdc):

fdisk -l | grep dev
#Disk /dev/sda: 32.2 GB, 32212254720 bytes, 62914560 sectors
#/dev/sda1   *        2048     1026047      512000   83  Linux
#/dev/sda2         1026048    62914559    30944256   8e  Linux LVM
#Disk /dev/sdc: 500 GB, 17179869184 bytes, 33554432 sectors
#Disk /dev/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors
#Disk /dev/mapper/centos-root: 28.5 GB, 28462546944 bytes, 55590912 sectors
#Disk /dev/mapper/centos-swap: 3221 MB, 3221225472 bytes, 6291456 sectors

• If you have a new clean disk, prepare a filesystem on it:

mkfs.xfs -K /dev/sdc

• Test mount your existing filesystem in the created directory:

mount /dev/sdc /vprotect_data

• Set ownership to vprotect user on directory /vprotect_data:

chown vprotect:vprotect -R /vprotect_data

• Add a line to /etc/fstabfile, to automatically mount new filesystem after reboot:

/dev/sdc    /vprotect_data    xfs    defaults 0 0

• Mount

mount -a

• Confirm with df that your /vprotect_data is mounted

• Restart your vprotect-nodeservice:

systemctl restart vprotect-node